Captions and translated subtitles can look similar while serving different needs. Captions include speech and relevant non-speech sound information. A translation track may focus on dialogue in another language. Read the available track description before assuming either option provides everything a viewer needs.
Terminology varies between regions and platforms. The practical question is what the selected track actually communicates in the programme you want to watch.

Begin with the information the viewer needs
Someone following dialogue in an unfamiliar language may want a translation. Someone who cannot rely on the soundtrack may also need speaker identification, meaningful sound cues and other context. These needs can overlap, but the same track should not be assumed to meet both simply because text appears on screen.
W3C’s accessibility guidance distinguishes same-language captions from translated subtitles while noting regional differences in naming. Use that distinction as a way to ask a clearer question, rather than correcting another viewer’s ordinary vocabulary. The available information matters more than winning a terminology argument.
Read the actual track options
Look for the language and any caption or SDH description supplied for the exact title. Do not infer a track’s contents from a general accessibility icon on a service homepage. A programme’s versions and episodes may not present identical options.
If a listing is unclear, examine a short authorised portion using the genuine player controls. A narrow check can show whether useful sound information appears in that section. It does not prove every scene is accurately covered, so describe the observation honestly if you need support.
Report a mismatch precisely
If the track differs from its description, identify the title, edition, episode where relevant, selected label and the observed issue. State whether text is absent, dialogue-only or missing a particular kind of context. Do not claim a whole library has the same problem from one observation.
Keep account details out of shared screenshots. A clear title-level report gives the responsible platform or provider a useful starting point without asking the viewer to disclose personal medical information. The question concerns access to the programme, and the practical feature is enough to describe that need.
Useful answers
Are captions and translated subtitles always identical?
No. Captions may include relevant sound information beyond dialogue, while a translated track may serve a different purpose. Read the actual track description.
Is the word subtitles used differently in different places?
Yes. Terminology varies, so identify the language and information supplied rather than relying on the label alone.